I bought a clone Aruduino pro mini as the below pictures. I uploaded it with a blink sketch and it's running well. After that I power it with 12VDC, but it's running well for a while (less than 1 minutes) and stop. I disconnected the power and touch the board. It was a little hot in a black IC (i think it's regulator).
So whether the MCU is dead or not. I intent to remove a black IC. What should I do?